Harrow



(No Model.)

O. DREW, A. W. LBISNER & P; NELSON.

' HARROW.

No. 310,499. Patented Jan. 6, 1885.

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UNITED STATES PATENT OFFICE.

CHRISTOPHER DREW, ANDREAS \VILLIAM LEISNER, AND PHILIP NELSON, OF LAS VEGAS, TERRITORY OF NEW MEXICO.

.HARROW.

SPECIFICATION forming part of Letters Patent No. 310,499, dated January 6, 1885.

(No model.)

To all whom it may concern:

Be it known that we, OHRIsTorHnR DREW, ANDREAS WILLIAM LnIsNEn, and PHILIP NELSON, all of Las Vegas, in the county of 5 San Miguel and Territory of New Mexico, have invented a new and Improved Harrow, of which the following is a full, clear, and exact description.

Our invention consists of the construction and arrangement of parts, as will be hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similarletters of reference indicate I corresponding parts in both the figures.

Figure 1. is a plan view of a harrow constructed according to our invention, and Fig. 2 is a sectional elevation of the same on the line am of Fig. 1.

\Ve fit a broad thin plate, a, of steel, iron, or other approved material, and as large as the area of the harrow, on the teeth I), suitably for shifting up to the under side of the frame 0 and down to the points of the teeth for a cleaner, to force down the trash collecting on the teeth and cause it to escape from the points, and for a gage to regulate the depth of the teeth in the ground by setting it part way down the teeth to run on the surface of the ground,

0 and also for a smoothing-plate to smooth the surface of the ground by setting the plate down to the points of the teeth, sothat it will run on the surface, and at the same time carry the weight of the harrow for pressing the sur- 5 face smooth. To operate said plate we connect a rod, d,with it at the center of the top, and extend it up through a tubular-standard, 6, supported on the top of the frame 0, for a stay to said rod and for a guide to a spiderframe, f, the arms of which are connected at the lower ends to the plate a by brackets g and pins 71. The red (1 extends above the top of the standard (I, and connects at with a presser, j, at the bottom of a socket, 7r, in the 5 lower end of said presser, which surrounds the top of standard cl and rests on the top of the hub Z of the spider-frame f. The upper end of the presser j is connected to the handlever m, the short arm of which is connected to link n,which extends down to and is jointed to the top of the barrow-frame a short distance from one side of the standard (2. The long arm of the lever m swings up and down along a standard, 0, attached to the top of the harrow-fra1ne, and having a series of pinholes, 1), to secure the lever in different positions by the stud-pin q, according to the dist ance it is required to set the plate a 'down along the teeth, said plate being pressed downward by the lever.

For raising the plate a and holding it upward, a coiled spring, 3, is attached to it and to the' top plate, I, of the frame at the center and surrounding the rod (1, suitably for pulling up plate a and holding it against the under side of the frame, and another coiled spring, a, is fitted in the socket k of presser 7 around rod (1, so as to bear on the top of standard 0 and press upward against the bottom of said socket k, to act in conjunction with spring s for lifting up the plate a. In this example the lever m is connected to the presser j by passing through a slot in the upper part of the presser; but it may be connected in any approved way. The lever has a curved notch, o, in the upper side, and the presser is correspondingly curved at ain the upper end of the slot, to provide a good bearing and easy-working joint, and the lever has stop-lugs a; at each side of the presser, to prevent it from sliding in the slot. The holdingstandard 0 is suitably stayed with a brace, 3 The plate a is provided with flanges z on the forward edges, to prevent the earth and other matter from collecting between it and the un- 8 5 der side of the frame.

Having thus described our invention, we

claim as new and desire to secure by Letters Patent- 1. The combination, with the barrow-frame 0 c and teeth I), of the smoothingplate a, provided with vertical flanges 2, extending up by the for ward sides of frame 0, and with openings for the teeth b to pass through, a rigid spider, f, pro vided with a central aperture, and jointed at 9 5 the ends of its arms to the plate a, a presser connected with the plate a through the aperture in the spider, springs for pressing the plate a upward, and a lever fulcrnnied to the frame and connected to the presser for oper ating the plate a, substantially as set forth.

2. The combination of the rod d, springs s and u, presser j, and tubular standard 6 with plate a and lever m, said plate being fitted to shift up and down on the teeth I), and having the spider f. substantially as described.

3. The combination of the lever-setting Standard 0, lever m, presser j, spider f, tubular standard 0, rod (1, and springs s and u with the plate a, fitted to shift up and down on the liarrow-teeth 12, substantially as described.

4. In a harrow of theeharacter described,

the tubular presser j, provided with a curved i5 slot, a, socket k and rod (1, in combination with the lever m, provided with a curved notch, 0, within the slot of the presser, stoplngs x on opposite sides of said slot, and the link at, connected to the short arm of th'elever 2 o substantially as and for'the purpose set forth.

CHRISTOPHER DREWV. ANDREAS XVILLIAM LEISNER. PHILIP NELSON.

Vitnesses:

J OHN L. TAYLOR, GEORGE H. SHIELD. 

